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Echocardiogram of the heart

Echocardiogram of the heart

M172/0037

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Colour echocardiogram (colour flow doppler map) of the human heart showing aortic regurgitation, represented by the orange area at bottom left of image. Colour flow mapping is a complex variation of ultrasound cardiography that is used to display the flow of blood through the heart. Aortic regurgitation is a reflux (a reverse flow) of blood from the aorta back into the left ventricle of the heart during contraction. The condition results from a defective aortic valve, caused by a previous acute rheumatic fever or syphilis. Symptoms include breathlessness, angina & heart enlargement; a severely damaged valve may necessitate replacement with an artificial valve.

Release details

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